In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.

In this animated object, learners examine how a multiplexer and a demultiplexer work together when their data select lines are connected to the same binary counter.

In this learning activity you'll review the operation of an Exclusive-NOR gate by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

The learner reads about safety considerations for operating a hydraulic metal shear. Text, graphics and a brief assessment are included.